Wheel puller



April 19, 1932. J. aAKos WHEEL FULLER Filed June 5;v 1930 2 Sheets-SheetApril 19, 1932.

Y J. BAKos WHEEL FULLER Filed June 5, 1950 2 Sheets-Sheet 2 Inventor:

'35 removal wheel.

Patented Apr. 19, 1932 UNITED STATES JOSEPH BAKOS, F MIMICO,015]"13113'21O,v CANADA WHEEL PULLER Appication inea :rune 1930. serial'No. 459,361.

The invention relates to improvements in wheel pullers as described inthe present specification and shown in the accompanying drawings thatform a part of the saine.

The main objects of the invention are to provide a simple and efiicientwheel puller constructed of few parts and which is adaptable to allsizes of wheels.

VThe invention consists in the novel features i0 of construction,arrangements and combinations described in the present specification andmore particularly pointed out in the claims for novelty following.

In the drawings Figure 1 is an outer side elevation ot' my improvedwheel puller, portions thereof being broken away and interio parts beinglshown in cross section.

Figure 2 is a cross sectional view taken on the line 2+2 of Figure l.V

Figure 3 is a partial plan view ot'Figure l.

Like numerals of reference indicate co-rrespending parts in the variousfigures.

Referring tothe drawings 1 is a circular metal block having a flat tace2 provided with atcentral recess, or opening, 3 of sufficient diameterto receive the largest size of wheel hub, said block .on its other sidebeing reduced to provide a centrally disposed sleeve 4 having a centralthreaded opening 5 extending completely therethrough and registeringwith the opening 3 centrally thereof, said threaded opening beingadapted to receive an externally threaded pressure screw 6 adapted to beforced against the end of the axle in the The screw 6 is provided with ahead 6a for the reception of a wrench or other tool.

Radial slots 7 leading through the side wall of the opening 3 to theexterior of the block 1 are provided, which slots are sub* stantially Tshaped in cross section, and are adapted to accommodate legs 8 ofsimilar cross section which slide therein, the ilanges on correspondingsides of said legs respectively being provided with teeth 9. The innerends of the legs 8 are concave as at 10 to correspond substantially tothe exterior surface of the wheel hub and are provided with threadscorresponding to the threads on the hub.

The block l on the side on which the sleeve 4 is located is providedwith circular openings 11 which extend inwardly to a point adjacent tothe opposite `face of said block and register at theirone sides thereofwith the sides of the openings 7 in which the teeth 9 of the legs S arelocated, there being one of such openings 11 between each pair ofadjacent legs. Gears 12 are mounted in the respective openings 11 andregis- 60 ter with the teeth of the associated legs 8 so that on therotation of said gears said legs will be moved towards, or away from,the central opening 3, according to the direction of travel of saidgears. The gears 12 are 65 provided on their inner ends with reducedbearing shafts 13 which extend into suitable openings in the block 1 andconstitute supports for the inner ends ot said gears. Said gears extendoutwardly a considerable distance past the face of said block, as at 14,and are meshed with a circular gear wheel 15 which rotates around thesleeve 4c.

A casing 16- encircles the sleeve 4 and encloses the corresponding faceof the block and the edge thereof and such casing is secured in anydesired manner, such as by the use of screws 17 threading into openingsin the block.

The outer ends of the gears 12 with the ex- 9 ception of one of saidgears are supported by means of bolts 18 extending loosely throughsuitable openings in the casing 16 and threading into the ends of saidgears, the remaining gear 12 having a rigid bearing 19, 85 or stem,extending through said casing past the headset the other bolts andhaving a head adapted for the reception of a wrench, or other tool 20,(said tool being shown in dotted line) so that rotary movementof saidgear will he imparted simultaneously to all of the remaining gears. y

That portion of the edge of the block 1 adjacent to'thestem 19 isprovided with notches 21 accessible through an opening 22 in the casing16 adapted to be engaged by a pivoted pawl 23 carried by the tool 20 'soas to permit of locking-the gears againstrrotation when the legs 8 havebeen brought into engagement m with the wheel hub.

In the use of this invention the legs 8 are withdrawn to permit of thewheel hub entering the opening 3 and said legs are then brought intogripping engagement around said hub with the threads thereof registeringwith the threads on said hub by simply turning the stem 19 by means ofthe tool 20, which through the medium of the engaging teeth of the gears12 and the legs 8 and the gear wheel 15, causes the legs to moveinwardly, and the device is locked by simply inserting the pawl 23 inthe desired notch 21 in the block 1. The screw 6' is then turnedinwardly against the end of the axle until the wheel is removed.

The present invention provides a simple tool adaptable to many purposessome of which are the removal of wheels, pulleys, gears, or bushings.

Vhat I claim is 1. A wheel puller comprising a block having a recess inone face thereof adapted to receive a wheel hub, said block having athreaded opening concentric with and of lesser diameter than said recessregistering therewith through the opposite face of said block, a screwthreading into said threaded opening, hub gripping elements slidable inradial slots in said block and adapted to enter said recess through theside wall thereof, rotary gears meshing with said hub gripping elementsrespectively and imparting longitudinal movement thereto, and a gearwheel common to all of said gears.

2. A wheel puller comprising a block having a recess in one face thereofadapted to receive a wheel hub, radial slots extending from said recessoutwardly, hub gripping elements slidable in said slots, thecorresponding side edges of said elements having teeth therein, gearsrotatably mounted between adjacent hub gripping elements at right anglesto the longitudinal axis thereof and meshing with the toothed portionsthereof respectively, a central gear wheel common to all of the afore-Said gears and on rotation imparting rotary movement to all of saidbears simultaneously, and a screw entering said block through the otherface thereof and extending into said recess.

3. A wheel puller comprising a block having a recess in one face thereofadapted to receive a wheel hub, an internally threaded sleeve extendingoutwardly from the outer face of said block, the bore of said sleevebeing of lesser diameter than that of said recess and registeringtherewith, a screw operating in said sleeve, slots extending radiallythrough said block from said recess, legs slidable in said slots, saidlegs having their corresponding side edges provided with teeth,cylindrical gears rotatably journa-lled betweeen adjacent legs aroundsaid sleeve and meshing with the toothed portions thereof respectively,said gears projecting outwardly past the face of said block Von whichsaid sleeve is located, a gear wheel mounted on said block and operatingaround said sleeve in mesh with the projecting portions of said gears,and a casing.

4. A wheel puller comprising a block having a hub opening in one facethereof, a sleeve extending from the opposite face of said block andhaving a threaded opening of lesser diameter than said hub openingcommunicating with said hub opening in the diametrical centre thereof, ascrew operating in said sleeve, a gear wheel rotatable around saidsleeve on the face of said block, gears rotatably journalled in saidblock at spaced intervals around said gear wheel in right angularrelation thereto and meshing therewith whereby rotary motion imparted toone of said gears will be communicated simultaneously to the remainingof said gears, said gears projecting inwardly beyond said gear wheel,hub engaging elements slidable longitudinally in radial slots throughthe side wall of said hub opening between adjacent pairs of said gears,said elements being substantially T shape in cross section and havingtheircorresponding side arms provided with teeth adapted to mesh withsaid inwardly projecting portions of said gears, said elements havingtheir inner ends concaved and provided with threads adapted to registerwith the threads on said hub, a slotted casing encircling said sleeveand enclosing the corresponding face and the edge of said block, bearingelements extending loosely through said casing into said gearsrespectively, that portion of said block accessible through the slot insaid casing being serrated, and a stem carried by one of said gears andextending through said casing in proximity to said slot therein.

Signed at Toronto, Ont. this 3rd day of June, 1980.

JOSEPH BAKOS.

